USA-265

USA-265

A Block IIF GPS satellite
Mission type Navigation
Operator US Air Force
COSPAR ID 2015-062A[1]
SATCAT № 41019[1]
Mission duration 12 years (planned)
Spacecraft properties
Spacecraft GPS SVN-73 (IIF-11)
Spacecraft type GPS Block IIF
Manufacturer Boeing
Launch mass 1,630 kilograms (3,590 lb)[2]
Start of mission
Launch date 31 October 2015, 16:13 (2015-10-31UTC16:13Z) UTC
Rocket Atlas V 401, AV-060[3]
Launch site Cape Canaveral SLC-41[3]
Contractor ULA
Orbital parameters
Reference system Geocentric
Regime Medium Earth
(Semi-synchronous)
Perigee 20,444 km (12,703 mi)[4]
Apogee 20,491 km (12,733 mi)[4]
Inclination 54.99 degrees[4]
Period 729.58 minutes[4]
Epoch 5 December 2015, 17:24:23 UTC

USA-265, also known as GPS IIF-11, GPS SVN-73 and NAVSTAR 75, is an American navigation satellite which forms part of the Global Positioning System. It was the eleventh of twelve Block IIF satellites to be launched.[2]

Launch

Built by Boeing and launched by United Launch Alliance, USA-265 was launched at 16:13 UTC on 31 October 2015, atop a Atlas V 401 carrier rocket, vehicle number AV-060.[3] The launch took place from Space Launch Complex 41 at the Cape Canaveral Air Force Station,[5] and placed USA-265 directly into semi-synchronous orbit.[4]

Orbit

As of 5 December 2015, USA-265 was in an orbit with a perigee of 20,444 kilometers (12,703 mi), an apogee of 20,491 kilometers (12,733 mi), a period of 729.58 minutes, and 54.99 degrees of inclination to the equator.[4] It is used to broadcast the PRN 10 signal, and operates in slot 6 of plane E of the GPS constellation. The satellite has a design life of 15 years and a mass of 1,630 kilograms (3,590 lb). [2] It is currently in service following commissioning on December 9, 2015.[6]

References

  1. 1 2 "Navstar 75". US National Space Science Data Center. Retrieved 10 December 2015.
  2. 1 2 3 Krebs, Gunter. "GPS-2F (Navstar-2F)". Gunter's Space Page. Retrieved 10 December 2015.
  3. 1 2 3 McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 10 December 2015.
  4. 1 2 3 4 5 6 McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 10 December 2015.
  5. McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 10 December 2015.
  6. "NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2015093". United States Coast Guard. Retrieved 10 December 2015.
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